Which microbes are harmful to humans!?

The microorganisms that can cause disease in humans and animals are called pathogenic microorganisms, and there are eight categories:

1 Fungus: causes ** disease. Infection on deep tissues.

2 Actinomycetes: **, wound infection.

3. Spirochetes: ** disease, blood infections such as syphilis, leptospirosis.

4 bacteria: ** suppuration, upper respiratory tract infection, urinary tract infection, food poisoning, sepsis, acute infectious diseases, etc.

5. Rickettsia: typhus, etc.

6 Chlamydia: trachoma, genitourinary tract infections.

7 viruses: hepatitis, Japanese encephalitis, measles, AIDS, etc.

Mycoplasma 8: pneumonia, urinary tract infection.

There are tens of thousands of microorganisms in the biological world, most of which are beneficial to humans, and only a few of them can cause disease. Some microorganisms are not usually pathogenic and can cause infection in a specific environment, called conditional pathogens. It can cause food to deteriorate and spoil, and it is precisely because they decompose objects in nature that they can complete the material cycle of nature.

Let me give you a few brief Escherichia coli, Aspergillus flavus, HIV, avian influenza virus, flower and grass tobacco virus, equine encephalitis virus, pneumococcus, yellow fever virus, rabies fixed virus, rubella virus; pathogenic mycoplasma; Aspergillus flavus, Fusarium pearella, Frog mold, Actinomycetes, Nocardia spp., Trichophyton gypsumoides, Sporotrichae, rabies fixative virus, rubella virus; pathogenic mycoplasma; Aspergillus flavus, Fusarium pearella, Frog mold, Actinomycetes, Nocardia spp., Trichophyton gypsumoides, Sporothrix, etc.

You can go to "Pathogenic microorganisms."

In general, the vast majority of viruses, some bacteria and fungi, and certain protozoa.

It is harmful to the human body.

When the body's immunity is weakened, it will invade the human body and cause disease.

Harmful effects of microorganisms:

1. Leads to the epidemic of infectious diseases. Viruses account for 50% of all human diseases.

2. Some microorganisms are corrupt, that is, they cause adverse changes in food odor and tissue structure. Of course, there are some microorganisms that are beneficial and can be used to produce cheese, bread, pickles, beer and wine. (This is equivalent to being a decomposer above).

3. Microorganisms can cause disease and cause mold and rot of food, cloth, leather, etc.

Beneficial effects of microorganisms:

1. The secondary metabolites of many strains are very useful antibiotics for human diseases. Such as penicillin produced by green filamentous bacteria.

2. Some microorganisms are widely used in industrial fermentation to produce ethanol, food and various enzyme preparations; Some microorganisms can degrade plastics, treat waste water and exhaust gases, etc., and have great potential for renewable resources, which are called environmental microorganisms.

Human beings and microorganisms coexist peacefully, restrain each other, and are in a state of dynamic equilibrium.

Microorganisms are also beneficial to humans. The harm of microorganisms to humans is that the ecological balance between the normal microflora and the host can be disrupted in some cases, resulting in ecological imbalance and leading to disease. In this way, the normal flora that does not cause disease at normal times becomes pathogenic bacteria.

For example, the body uses antibiotics for a long time, and the bad bacteria are eliminated and the good bacteria are also killed.

The benefits of microorganisms are:

The vast majority of microorganisms are beneficial to humans, animals and plants, and if there are no microorganisms in nature, plants cannot metabolize, and humans and animals can survive.

Under normal conditions, the human body will not develop waste infectious diseases, and the bacteria that inhabit the human mouth, nasal cavity, throat cavity and digestive tract are harmless and some can resist pathogens as organisms. This is in a state of equilibrium, and once it is broken, disease can arise.